Stand up comedian Clinton Jackson draws one of many laughs out of Cherlina King, center, her daughter Chantal King, 11, left, friend Marietta Vigil Gonzales, center right, and Jim Mason at Rhythm on the River in Roger's Grove in Longmont on Friday, July 9, 2010. (Joshua Buck/Times-Call)

Stand up comedian Clinton Jackson pokes fun at Coloradoans saying they like to hold doors for anyone and everyone during his routine at Rhythm on the River in Roger's Grove in Longmont on Friday, July 9, 2010. (Joshua Buck/Times-Call)

The soapy suds from the bubble tower are a bit too much for D'Angelo Wright, 6, to catch in his mouth at Rhythm on the River in Roger's Grove in Longmont on Saturday, July 10, 2010. (Joshua Buck/Times-Call)

Lia Ditslear, 7, and her cousin Parker Sherry, 12, try out the instruments they built, vuvukazoos, in the Discovery District tent at Rhythm on the River in Roger's Grove in Longmont on Saturday, July 10, 2010. (Joshua Buck/Times-Call)

Oakhurst lead vocalist and guitarist A.P. Hill sings "Close Your Eyes," a song he wrote as his son was being born at Rhythm on the River in Roger's Grove in Longmont on Saturday, July 10, 2010. (Joshua Buck/Times-Call)

Tommy Noonan, 7, yells to his mother standing on the bank while taking a kayak for a spin with his father Tom at Rhythm on the River in Roger's Grove in Longmont on Saturday, July 10, 2010. (Joshua Buck/Times-Call)